# David B. Kirk

> David B. Kirk is a seed investor at Parker School Hawaii (Waimea) backing Software and Mobile. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Parker School Hawaii](https://shizune.co/investors/profile/parker-school-hawaii)
- Location: Waimea, United States
- Total investments: 8
- Last investment: Jul 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/david-kirk-057a867b

David B. Kirk is a seed investor at Parker School Hawaii in Waimea focused on Software and Mobile. David Kirk is the President Of The Board Of Directors at Parker School Hawaii and was a Fellow at NVIDIA. He attended Caltech,

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $255k–$2.3M |
| Series A | $16M–$16M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 3 | 38% |
| Mobile | 2 | 25% |
| Market Research | 2 | 25% |
| Consumer Research | 2 | 25% |
| Artificial Intelligence | 2 | 25% |

31 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 38% |
| Series A | 2 | 25% |
| Angel | 1 | 13% |
| Convertible Note | 1 | 13% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 5 | 63% |
| The Netherlands | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Knit | Based in Austin, Texas, Knit is the platform helping brands make customer-centric decisions through agile video feedback. Powered by a one-of-a-kind network of over 60K collegiate Gen Z-ers who are motivated by social causes, Knit enables its customers to make better, customer-centric decisions through Voice of Consumer videos. | $16.1M | Series A | Jul 31, 2025 |  |
| Ryu Games | Ryu Games helps make games with cash tournaments where players compete for a cash prize. | $2.3M | Seed | Mar 25, 2021 |  |
| Ryu Games | Ryu Games helps make games with cash tournaments where players compete for a cash prize. | $2.3M | Seed | Feb 17, 2021 |  |
| Ozarka | Ozarka B.V., based in Amsterdam, is a full service company offering solutions to any type of food vendor who wishes to transition from linear, single use packaging to circular, reusable packaging. We offer three integrated channels, ARK Reusables proprietary packaging, Packaging as a Service that collects, washing, and redistributes packaging, anda customer facing online ordering platform for delivery or takeaway packaging in reusable containers. | $286.1K | Seed | Sep 01, 2020 |  |
| BioTrillion | We so often think of Healthcare as an industry, that we tend to forget about Healthcare as a purpose. Globally and annually, trillions of dollars are ineffectively spent on healthcare and trillions of life data points are ineffectively connected to insights about our health. There is a better way.BioTrillion is a little startup with boldambitions to more efficatiously and scalably advance Healthcare – via Digital Biomarkers.Every human generates massive amounts of life data that will unlock novel health insights & applications. BioTrillion is developing a mobile health technology platform called BioEngine4D™ – for digitally detecting dangeous drugs, digitally detecting developing diseases, and data driven drug development – by measuring data from life, analyzing it through computational advancements in machine learning and artificial intelligence, and applying it back for life.BioTrillion, Inc. is headquartered in San Francisco, CA and is reimagining Life Sciences through the fundamental principles of many sciences.Our mission is to enable consumer smart devices to empower ordinary consumers with extraordinary health insights. Advances in technology have amplified our individual capabilities in many ways, and healthcare should be no exception.Website: www.biotrillion.com Contact: contact@biotrillion.com Jobs: https://www.biotrillion.com/opportunities Application: https://biotrillion.typeform.com/to/wSvoKI | $2.3M | Seed | Aug 15, 2018 |  |
| Eyegroove | Eyegroove is the social network for the music video and a technological platform that, for the first time, effortlessly brings together all the elements of great video: music, editing, and effects. It offers a mobile iOS application that allows users to choose a piece of streaming music, record video, and add interactive effects. | $1.3M | Convertible Note | May 05, 2014 |  |
| Eyegroove | Eyegroove is the social network for the music video and a technological platform that, for the first time, effortlessly brings together all the elements of great video: music, editing, and effects. It offers a mobile iOS application that allows users to choose a piece of streaming music, record video, and add interactive effects. |  | Angel | May 05, 2014 |  |
| Knit | Knit pairs forward-deployed researchers with autonomous research agents to deliver decision-ready insights faster and better than traditional agencies, unlocking entirely new ways for the world's most iconic enterprises to run research. | $16.1M | Series A |  |  |

8 of 8 investments shown.

## Co-investors
- [Silicon Road Ventures](https://shizune.co/investors/profile/silicon-road-ventures) — VC Fund, 3 deals together
- [500 Global](https://shizune.co/investors/profile/500-startups) — VC Fund, 2 deals together
- [Asymmetry Ventures](https://shizune.co/investors/profile/asymmetry-ventures) — VC Fund, 2 deals together
- [GFT Ventures](https://shizune.co/investors/profile/gft-ventures) — VC Fund, 2 deals together
- [INP Capital](https://shizune.co/investors/profile/inp-capital) — VC Fund, 2 deals together
- [MGV Capital](https://shizune.co/investors/profile/mgv-capital-group) — VC Fund, 2 deals together

## About Parker School Hawaii

VC Fund · Kamuela, United States

Parker School Hawaii is a non-profit, college-preparatory independent day school that offers a complete K-12 college-preparatory program. It was accredited by the National Association of Independent Schools (NAIS) and the Western Association of Schools and Colleges (WASC). It was fully accredited by the National Association of Independent Schools(NAIS) and the Western Association of Schools and Colleges (WASC).It was founded in 1976 and is located in Kamuela, Hawaii.

1 contacts available at Parker School Hawaii.

| Name | Title | Profile |
| --- | --- | --- |
| David B. Kirk | President Of The Board Of Directors | https://shizune.co/investors/profile/david-b-kirk |

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## FAQ

### What does David B. Kirk invest in?

David B. Kirk invests primarily in Software, Mobile and Market Research startups, most often at Seed and Series A stage. Most of the 8 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is David B. Kirk's check size?

David B. Kirk typically joins rounds of $255k–$2.3M at Seed and $16M–$16M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds David B. Kirk participates in.

### When did David B. Kirk last invest?

The most recent investment recorded for David B. Kirk closed in Jul 2025. Shizune tracks 8 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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